Controlled synthesis of porous platinum nanostructures for catalytic applications.

Controlled synthesis of porous platinum nanostructures for catalytic applications.

Journal of nanoscience and nanotechnology (2014-04-23)

Yanqin Cao, Junwei Zhang, Yong Yang, Zhengren Huang, Nguyen Viet Long, Masayuki Nogami

ABSTRACT

Porous platinum, that has outstanding catalytic and electrical properties and superior resistant characteristics to corrosion, has been widely applied in chemical, petrochemical, pharmaceutical, electronic, and automotive industries. As the catalytic activity and selectivity depend on the size, shape and structure of nanomaterials, the strategies for controlling these factors of platinum nanomaterials to get excellent catalytic properties are discussed. Here, recent advances in the design and preparation of various porous platinum nanostructures are reviewed, including wet-chemical synthesis, electro-deposition, galvanic replacement reaction and de-alloying technology. The applications of various platinum nanostructures are also discussed, especially in fuel cells.

MATERIALS

Product Number

Brand

Product Description

520799

Sigma-Aldrich

Platinum black, low bulk density, ≥99.9% trace metals basis

298093

Sigma-Aldrich

Platinum, gauze, 100 mesh, 99.9% trace metals basis

267244

Sigma-Aldrich

Platinum, foil, thickness 0.025 mm, 99.9% trace metals basis

205915

Sigma-Aldrich

Platinum black, black, powder, ≤20 μm, ≥99.95% trace metals basis

349402

Sigma-Aldrich

Platinum, wire, diam. 0.25 mm, 99.9% trace metals basis

349348

Sigma-Aldrich

Platinum, foil, thickness 0.127 mm, 99.99% trace metals basis

349380

Sigma-Aldrich

Platinum, foil, thickness 0.1 mm, 99.9% trace metals basis

357375

Sigma-Aldrich

Platinum, wire, diam. 0.076 mm, ≥99.99% trace metals basis

327484

Sigma-Aldrich

Platinum, shot, ≤3 mm, ≥99.9% trace metals basis

267821

Sigma-Aldrich

Platinum, wire, diam. 0.127 mm, 99.9% trace metals basis

520780

Sigma-Aldrich

Platinum black, fuel cell grade, ≥99.9% trace metals basis

349321

Sigma-Aldrich

Platinum, foil, thickness 0.25 mm, 99.99% trace metals basis

444685

Sigma-Aldrich

Platinum, wire, diam. 2.0 mm, 99.9% trace metals basis

GF19578831

Platinum, wire reel, 0.05m, diameter 0.20mm, annealed, may be used as one component of a thermocouple, 99.99%

GF15342016

Platinum, tube, 500mm, outside diameter 1.2mm, inside diameter 1.0mm, wall thickness 0.1mm, as drawn, 99.95%

GF26290313

Platinum, tube, 50mm, outside diameter 2.0mm, inside diameter 1.6mm, wall thickness 0.2mm, as drawn, 99.95%

GF22018553

Platinum, tube, 50mm, outside diameter 3.0mm, inside diameter 2.8mm, wall thickness 0.1mm, as drawn, 99.95%

GF72566657

Platinum, foil, 0.1m coil, thickness 0.029mm, coil width .34mm, annealed, 99.99%

GF06396532

Platinum, foil, 10mm disks, thickness 0.025mm, as rolled, 99.99+%

GF01692952

Platinum, wire reel, 0.05m, diameter 0.25mm, as drawn, 99.998%

GF41572414

Platinum, foil, 8mm disks, thickness 0.0075mm, as rolled, 99.95%

GF89210336

Platinum, foil, 4mm disks, thickness 0.025mm, as rolled, 99.95%

GF25102897

Platinum, foil, 0.5m coil, thickness 0.045mm, coil width .75mm, as rolled, 99.95%

GF88232542

Platinum, foil, 15mm disks, thickness 0.025mm, as rolled, 99.95%

GF87506208

Platinum, foil, 0.2m coil, thickness 0.025mm, coil width 1.6mm, as rolled, 99.95%

GF74454824

Platinum, wire reel, 0.1m, diameter 0.006mm, wollaston, 99.9%

GF87499906

Platinum, foil, 6mm disks, thickness 0.004mm, as rolled, 99.95%

GF99566410

Platinum, foil, 15mm disks, thickness 0.025mm, as rolled, 99.99+%

GF85102837

Platinum, wire reel, 0.1m, diameter 0.125mm, annealed, may be used as one component of a thermocouple, 99.99%

GF07973961

Platinum, foil, 0.5m coil, thickness 0.025mm, coil width .85mm, as rolled, 99.95%